116566361121 has 24 divisors (see below), whose sum is σ = 184643556480. Its totient is φ = 65192125152.

The previous prime is 116566361117. The next prime is 116566361129. The reversal of 116566361121 is 121163665611.

It is not a de Polignac number, because 116566361121 - 2² = 116566361117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116566361121.

It is not an unprimeable number, because it can be changed into a prime (116566361129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8428926 + ... + 8442743.

It is an arithmetic number, because the mean of its divisors is an integer number (7693481520).

Almost surely, 2^116566361121 is an apocalyptic number.

It is an amenable number.

116566361121 is a deficient number, since it is larger than the sum of its proper divisors (68077195359).

116566361121 is a wasteful number, since it uses less digits than its factorization.

116566361121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16871733 (or 16871726 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The spelling of 116566361121 in words is "one hundred sixteen billion, five hundred sixty-six million, three hundred sixty-one thousand, one hundred twenty-one".